Ore-concentrator.



No.' 892,057.. y PATENTBD JUNE 3o, 1908.

F. G. JANNEY. 1

ORB GONGBNTRATOR. APPLICATION FILED APB. 24. 1901.

2 SHEETS-SHEET 1.

IN VEN TOR. Ffa/7.1i G. Ja

WITNESSES: l

may

ATTORNEY.

No. 892,057. PATENTED JUNE 30, 1908.

F. G. JANNBY.

ORE GONGENTRATOR.

L I APP IOATIQN ILED APR 24 1907 Z SHEETS-SHEET 2l INVENTOR.

3e' 'cmk GJC/Hwy LTE. 35 BY m A TTORN E Y.

FRANK G JANNEY, OF SALT LAKE CITY, UTAH.

ORE-CONCENTRATOR.

Specification of Letters Patent.

Patented June 30, 1908.

Application filed April 211, 1907. Serial No. 369,984.

To all whom it may concern:

Be it known that I, FRANK G. JANNEY, citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and Stateof Utah, have invented certain new and useful Improvements in Ore-Concentrators, of which the following is a full, clear, and exact description, reference'being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in ore concentrators and it consists in the novel construction and arrangement of parts more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a top plan of the concentrator; Fig. 2 is a half section and half elevation, the section being on the line 2-2 of Fig. 1; Fig. 8 is a horizontal section on the line 3-3 of Fig. 2; Fig. 4 is an enlarged vertical section on the line 4-4 of Fig. 1; Fig. 5 is an enlarged detail of one of the branch pipes leading from the water-box, and valve mechanism therefor; and Fig. 6 is a vertical section on the line 6-6 of Fig. 3.

The present invention relates to the reciprocating type of concentrator, the improvement having forits object the introduction of a jigging action to supplement the reciprocating movement, the combination of the two movements resulting in a most effective separation of the mineral-carrying constituents from the non-mineral bearing and lighter material as will subsequently fully appear. This combination of movements imparted to the pulp is not to be confounded with themovements inherent in that type of concentrator in which a horizontal reciprocation of the pan is supplemented by a bodily vertical reciprocation thereof, since in my present invention the jigging or lifting action of the water is one which takes place within the table or vessel, and is a movement quite distinct and independent of any movement which the body of water may assume with the movements of the table and though my invention is specifically illustrated as beingv applied to a type of concen- 'trator reciprocating in but a single plane (horizontal) it need not necessarily be restricted thereto. Neither is the present invention restricted in its application to ore concentrators, but may be used in any concentrator employing water as a medium of separation. A further object of my invention is to con-k struct a concentrator in which the relative intensities between the reciprocating and jigging movements 'may be carefully adjusted according to the specific gravity and composition of the material operated on and the proportions and nature of the ore-bearing constituents of the mineral or rock treated.

A further object is to construct a concentrator in which the several operating parts are under perfect control and capable of accurate adjustment, and one possessing further and other advantages better apparent from a detailed description of the invention, which is as follows:

Referring to the drawings F represents a frame casting having a ball race a for the support of the table T, the latter being additionally supported at intervals by posts P distributed about the axis of rotation or circular reciprocation of the table. Forming part of the frame F is a central tubular bearing F for the reception of a vertically reciprocating plunger 1, the upper end of which carries a spider 2, to the arms of which is secured a piston 3 operating in the central water-box 4 of the table. Carried by the table and superposed above the water-box 4 is an annular distributer box 5 into which the pulp is introduced through a pipe 6 leading to any source of supply7 the pulp escaping from the boX through the spouts 7 onto the inclined surface of the table, until it finally reaches the jigging compartment or hutch S formed about the periphery of the table.-

This compartment is in the form of a series of segments, the several segments having distributed between them the downwardly inclined discharge spouts 9 closed by the plugs 10. The spouts 9 are employed for discharging the heavy, 'fine mineral-bearing material which has worked its way through the jigging screen 11 with which the compartments or hutches S are covered, the tailings or nonmineral bearing material discharging over the rim or wall 12 into the tailings launder 18, whence it may be discharged to a main launder 14 through a valve-controlled spout 15, as desired, The screen 11 rests on the bands 16 and is held in position by the angle-'plates 1 7, the screen being provided with circular riffles 18 as shown, the latter passing under the angle-plates 17. For convenience the several segments of the annular compartment 8 will hereinafter be referred to as a compartmentH or hutch, and in practice the compartment may be made continuous or the several segments may be partitioned off one from the other.

Leading from the walls of the water-box 4 are a series of branches or pipes 19 corresponding in number to the number of hutches 8, the pipes 19 in turn discharging into a series of distributing chambers 20 having converging upper and lower walls forming constricted discharge passages 21 which communicate directly with the compartments 8, and which insure a forcible influX for the water entering the compartments. The velocity and volume of water forced through the pipes 19 by the reciprocations or down strokes of the piston 3 is regulated by a preferably butter-ily valve 22 to the axis of which is secured an arm 23 coupled to the inner end of a controlling rod 24. The latter passes through a bearing25 secured to the table and V when the valve is once adjusted, the rod is fastened by a lock-screw 26.

In the dropping of the plunger and piston carried thereby, the impulse imparted to the water in the water-box 4 will be communicated through the branches 19 and distributing chambers 20 to the water in the jigging compartments, thereby imparting a lifting action to the material on top of the screen 11. The latter may be provided with coarse ragging which will regulate the quantity of fine mineral-bearing material which shall be allowed to enter the hutches 8. In the operation of the concentrator, the table is given a reciprocating motion about its aXis, and at the same time the water is subjected to jigging impulses as already indicated. It is apparent that by varying the length of the piston strokes, and carefully timing them, the combination of motions thus imparted to the water-bodies contained in the several compartments'8 can be regulated to a nicety, such regulation depending on the character of the ore or material treated. In practice the piston 3 descends at the end of the return stroke of the table.

The presence of the peripheral rim 12, projecting as it does above the table, makes it possible to maintain a substantial depth of water over both the table and jig compartments to permit of the proper stratification of the particles according to their settling capabilities uniniiuenced by vertical currents, and then deliver the material so stratified to the jig compartments where the vertical currents come into play.

It is immaterial of course what mechanical means are employed for reciprocating the piston, or adjusting the length of the stroke, or what means are employed for reciprocating the table, but in practice I prefer to employ the following mechanisms: Disposed beneath the ltable is a cam-shaft S, one end of Whichcarries a lifting cam 27 which in the I rotation of the shaft (provided with tight and loose pulleys A, A connected to any source of power not shown) lifts a lever 28 fulcrumed at one end to a bracket 29, the

lever being pivotally and loosely coupled beneath the bearing F to the lower end of the plunger rod 1. Thus with each rotation of the cam-shaft the plunger and its piston are lifted, the same descending by gravity the moment the lever 28 has passed beyond the influence of the cam, the distance of the drop being regulated by the rubber-cushioned buer 30 whose vertical position may be carefully adjusted along the bracket 30/,as shown, in any mechanical manner. The opposite end of the cam-shaft is provided with an eccentric 31 which engages the strap or loop 32 of a vertically reciprocating eccentric rod 33. The end of the cam-shaftcarrying the eccentric 31 has a bearing on top of a housing I-I one of whose Walls forms an abutment for one end of a toggle-link 34, the oposite end being pivotally coupled to the ower end of the rod 33. The rod 33 is likewise coupled to a second toggle-link 34 which in turn has its opposite end pivotally secured to a depending link 7L hinged in the housing H, said link h being in turn pivotally coupled to the adjacent ends of the pitmen or connecting rods 35 tied together at a convenient point by the tie-bolt 36, the pitmen being in turn pivotally coupled to a depending bracket 37 secured to the table. As the shaft S rotates it is apparent that the eccentric will impart a vertically reciprocating movement to the eccentric rod 33, the latter alternately contracting and expanding the toggle-links and since one of the links bears against a stationary abutment, it follows that a horizontal reciprocation will be imparted to the pitmen, which in turn impart the v necessary rotary reciprocation to the table. As stated above the length of the strokes of the piston 3 may be regulated by a careful vertical adjustment of the arresting buffer 30 which intercepts the lifting lever 28 on the downward oscillation. The parts too, are adjusted so that the down stroke of the piston 3 takes place at the end of the return stroke of the table.

Having described my invention what I claim is:

1. In a concentrator, a rotary reciprocating table having outer compartments for water to receive the material to be treated and having a peripheral rim projecting above the surface of the table, and means for subj ecting the water to a jigging motion during the reciprocations of the table.

2. In a concentrator, a horizontally rotary reciprocating table, a series of water com partments disposed along the periphery thereof, a peripheral rim extended above the surface of the table, means for discharging the material to be treated on to the table and allowing it to flow over the compartments and into the water confined therein, means for subjecting the water to a jigging motion, and suitable screens covering said compartments for intercepting the larger particles of the material operated on.

3. In a concentrator, a horizontally rotary reciprocating table having a peripheral rim extended above the surface of the table, a central water-box disposed about the axis of oscillation of the table, peripheral water compartments carried by the table; conduits establishing communication between the water-box and compartments aforesaid, and a reciprocating piston in said water-box iniparting vertical or jigging impulses to the water during the reciprocations of the table. 4. In a concentrator, a suitable horizontally reciprocating circular table, a peripherally disposed jigging com artment therefor, a peripheral rim extender above the surface of the table, means for conducting the material to be treated into said compartment, a central water-box for the table, a series of branches leading from the water-box to the jigging compartment, a piston in said waterbox, and means for imparting reciprocations to the piston and 'a simultaneous rotary reciprocation to the table, whereby the water is subjected to vertical impulses while having imparted thereto a horizontalreciprocation.

5. In a concentrator, a suitable table having a series of j igging compartments disposed about the periphery thereof, and provided with distrlbuting chambers having constricted passages opening into said compartments, a central water-box, branches connecting said box with the several chambers, a piston in the water-box, a tubular bearing rejecting axially through the waterbox, a p unger operating in said bearing and having its upper end connected to the piston, a lifting lever co operating with the lower end of the plunger, a shaft, a cam on the shaft for engaging the lifting lever and forcing the piston. upwardly, and intermediate connections between the cam-shaft and table for imparting rotary horizontal reciprocations to the table during the vertical reciprocations of the piston, the latter gravitating downward upon release of the lifting lever lloy the cam on the cam-shaft.

In testimony whereof I aflix my signature, in presence of two witnesses.

FRANK Gr. JANNEY.

I/Vitnesses:

GEO. O. BRADLEY, CHAs. FISCHER. 

